EU 4_Chlorine and its inorganic Compounds

What is the atomic number of chlorine?

• 17

• 20

• 18

• 16

To which group does chlorine belong in the periodic table?

• Group 1

• Group 17

• Group 3

• Group 14

What does the Greek word 'chloros' mean?

• blue

• green

• yellow

• red

What type of bond does chlorine form with non-metals?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

What is the chemical formula for potassium manganate?

• K₂MnO₇

• K₂MnO₄

• K₂MnO₃

• KMnO₄

What is produced when potassium manganate reacts with hydrochloric acid?

• Potassium sulfate and manganese dioxide

• Hydrochloric acid and potassium hydroxide

• Manganese(II) chloride, potassium chloride, water, and chlorine gas.

• Manganese(IV) oxide and potassium chloride

What is the state of chlorine at room temperature?

• Plasma

• Liquid

• Gas

• Solid

What is the chemical formula for bleaching powder?

• CaCl₂

• Ca(OCl)₂

• KClO₃

• NaCl

What is required to prepare chlorine from bleaching powder?

• Hydrochloric acid (HCl) is required.

• Sodium hydroxide (NaOH) is required.

• Sulfuric acid (H₂SO₄) is required.

• Nitric acid (HNO₃) is required.

What is the role of hydrochloric acid in the preparation of chlorine?

• Hydrochloric acid neutralizes chlorine gas.

• Hydrochloric acid is used to store chlorine gas.

• Hydrochloric acid acts as a catalyst in chlorine production.

• Hydrochloric acid acts as a reactant to produce chlorine gas.